QQ客服 官方微博 反馈留言

	Evolution of desertification in a two-dimensional energy balance model coupled with thermodynamics and dynamics
	Chao JiPing2,3; Li YaoKun1,4
刊名	Science china-earth sciences
	2010-11-01
卷号	53期号:11页码:1726-1733
关键词	Two-dimensional energy balance model Desertification Two equilibria
ISSN号	1674-7313
DOI	10.1007/s11430-010-4032-x
通讯作者	Li yaokun(lyknq@lasg.iap.ac.cn)
英文摘要	The relationship between desert evolution and change in albedo has been investigated quasi-analytically using a zonal mean two-dimensional energy balance model which considers the radiation transmission process due to thermodynamics and boundary layer movement caused by kinetics. a climate state including temperature, zonal wind, meridional wind and vertical wind can be simulated according to the current zonal distribution of albedo. given desert distribution, characterized by the value and distribution of albedo, the response of climate on albedo has been studied to analyze the evolution of desert climate. one significant result is that the simple model can reproduce mean meridional circulation. another result indicates that climate corresponds to two equilibria. this happens when the junction temperature between vegetation and desert is higher than a certain critical value. as for the first equilibrium, the desert belt is predicted to move southward in the northern hemisphere with the increasing values of albedo, which corresponds to the current trend of climate change. for the second equilibrium, vegetation will expand northward with increasing values of albedo, which would indicate a narrowing of the desert belt. in order to determine if the two equilibria exist, new physical models are needed.
WOS关键词	CLIMATE
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000298361500013
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2405444
专题	中国科学院大学
通讯作者	Li YaoKun
作者单位	1.Chinese Acad Sci, Inst Atmospher Phys, State Key Lab Numer Modeling Atmospher Sci & Geop, Beijing 100029, Peoples R China 2.Natl Marine Environm Forecasting Ctr, Beijing 100081, Peoples R China 3.State Ocean Adm, Inst Oceanog 1, Qingdao 266061, Peoples R China 4.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Chao JiPing,Li YaoKun. Evolution of desertification in a two-dimensional energy balance model coupled with thermodynamics and dynamics[J]. Science china-earth sciences,2010,53(11):1726-1733.
APA	Chao JiPing,&Li YaoKun.(2010).Evolution of desertification in a two-dimensional energy balance model coupled with thermodynamics and dynamics.Science china-earth sciences,53(11),1726-1733.
MLA	Chao JiPing,et al."Evolution of desertification in a two-dimensional energy balance model coupled with thermodynamics and dynamics".Science china-earth sciences 53.11(2010):1726-1733.

个性服务

查看访问统计

相关权益政策

暂无数据

收藏/分享

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。